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Troubleshooting Guide
Belore requesting service lor this unit, check the chart below lor a possible cause ofthe problem you are experiencing. Some simple checks
or a minor adjustment on your part may eliminate the problem and restore proper operation.
II you are in doubt about some ol the check points, or ilthe remedies indicated
In
the chart do not solve the problem, relerto the directory ol
Authorized service centers (enclosed with this unit) to locate a convenient service center, or consult your Technics dealer lor instructions.
Probtem
Probable cause(s)
Suggested remedy
f49$Ound
!sheera
\Vb."
{he,
Pb.er "turned
on.
Whétl
IÎsteQing to IIt81'eo
s~nd.the
sound of the
v1H'Î01IS
mü&j~I.instruments
ï~notheard.
fI"om its correct
Connections are incomplete or incorrect to the
speaker systems, etc.
The incorrect input selector has been pressed.
sello
the "tape" position.
The positive (+) and negative
(~)
connections
ol the speaker connection wires are reversed.
• Check to be sure that all connection wires are
correctly connected.
• Check to be sure that the correct selector is
pressed.
• Except lor tape playback, set the tape-monitor
selectors to the "sou ree" position.
! •
connection wires so that
Ihe positive and negative connections are
correct.
-
po$itiol'l.
Whe,n"$t~nlng
toster-eo
The left and right connections ol the speaker
• Check the speaker connection wires and con neet
.~nd,H1e
left andtlght
connection wires are reversed.
them correctly il necessary.
f-::T:::h-e-cl:-e""ft:-a-n-dC-Cri:-g-:-h-:-t-c-o-n-n-e-c'"'jj-o-n-s-o-=I-:-th:-e-c-o-n-n-e-c----i-:-.C heck t he con nection w-i:-re"-s-t'-o-o-t:7- - r eq u i pme nt
he
ti on wires connected to other equipment are
and connect them correctly il necessary.
reversed.
sounds
are reversed;
HA,:"' " ••.
,"' " to-W-·-p' " ' : lt,...c..,.h-éd....,.,.n' - o""' l :-s..,.e....,("""h' " "u-m-··","-f-:: T
:7
h
-e
power cord or a Iluorescent light, etc., is
i •
Try separating the amplifier Irom theelectri-C
~
..
"bUZ~)ls
haard.
near the connection wires.
applianee as lar as possible.
• Reverse the connection ol the power cord plug.
The conneclion ol the grouna:-w-'-ir-e"7is-'-in-c-o-r-re-c""'tc---i--.-'=C-7-heck to be sure that the grounding connection
or incomplete.
is correct.
~$~
is . not heard fromthe
The speaker connection wires are
• Check and correct the connections ol the
pake!" aystEm1 oftone aide.
disconnected.
speaker con necti:-o_n-;-w_i-:-re_s_._ _ _
-,-_-c-_ _ _
-l
.... The balance control ol the amplilier is not set
• Set the mark on the balance control to the center
to the center position.
positi()_n-;.
-;-c;-------,.
The protection circuitry has lunctioned
• Switch of! the power, and, after determining and
because the positive and negative speaker
correcting the cause, turn on the power once
connection wires are "shorted" or speaker
again.
systems with an impedance less than the
indicated rated impedance ol the amplelier are
used.
Maintenance
To clean thls unit, use a soft, dry cloth.
II the surlaces are extremely dirty, use a soft cloth, dipped into a
soap-and-water solution or a weak detergent solution.
Wring the cloth weil belore wiping the unit.
Wipe once again with a solt, dry cloth.
Never use alcohol, paint thinner, benzine, nor a chemically
treated cloth to clean this unit.
Such chemica Is may damage the linish of your unit.
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